Answer:
The two sentences from the passage that best support the article's conclusion that sled dogs are a distinct breed are:
3. "Interestingly, this continual out-crossing for athletic enhancement has still led to the Alaskan sled dog repeatedly producing its own unique genetic signature."
5. "Their findings confirmed that the Alaskan sled dog has a unique molecular signature and that the genetic profile is sufficient for identifying dogs bred for sprint versus distance."
Sentence 3 highlights that the Alaskan sled dog has developed its own unique genetic signature through selective breeding for athletic prowess. This suggests that the breed is distinct from other breeds.
Sentence 5 further supports this conclusion by stating that the researchers' findings confirmed the presence of a unique molecular signature in Alaskan sled dogs. The genetic profile of the sled dogs is also said to be sufficient for distinguishing between dogs bred for sprinting and dogs bred for distance running.
These two sentences provide direct evidence and statements that support the notion that sled dogs, specifically Alaskan sled dogs, are indeed a distinct breed.
Step-by-step explanation:
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